273 mild build cam

I'll just throw in another option. This hyd Crower went in my Commando back in the early 90s. Recommended by my machinist as roughly equivalent to the stock mech cam. It actually idles so quiet that people don't get out of my way when cruising slowly through a car show, but it has plenty of growl at WOT.

Crower Cam Spec
Part No. 31914
Application 340 Dodge
Grind No: B.T.
Rocker Ratio 1.5:1
Adv. Duration In. 264
Adv. Duration Ex. 264
In. Lift .427 Clearance (hot) .000
Ex. Lift .427 Clearance (hot) .000
Info for degreeing @ .050 tappet lift:
Intake Opens -2 BTDC
Closes 30 ABDC
Exhaust Opens 38 BBDC
Closes -10 ATDC
Duration @ .050
Intake 208
Exhaust 208
Lobe Center 110
In. Lobe Lift 284
Ex. Lobe Lift 284

IIRC, the pushrod length difference is considerable -- no way the stock ones work. I used cut-to-length ones, but heck if I recall the actual length.